Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b1fee32d6bbf900…

MALICIOUS

PDF

85.8 KB Created: 2021-05-09 01:36:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 12597de69339f1a99feb1cce26d82ac2 SHA-1: 40ed158742e9340a999f12e498eaccbb74f10ff6 SHA-256: 6b1fee32d6bbf90061c3a7175ac93b449898b43d63776ff825bd80e4aff7b97a
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous links, many pointing to compromised WordPress sites, suggesting it's part of a link farm designed to redirect users. The document body, though heavily obfuscated, appears to reference 'Minecraft forge 1.13.2 windows 10', likely a lure to trick users into clicking malicious links. No scripts were extracted, but the PDF structure and URL patterns indicate a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8245

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160941daeefeea---98108193520.pdf
    • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/nipm72c3d70dbe75ut6h0khvti/63502506621.pdf
    • http://andlupa.com/userfiles/file/2682835112.pdf
    • http://banglatalkies.com/dynamic-images/cms/file/jofuvigulilem.pdf
    • http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e0cb6b3edc---jewokivawar.pdf
    • http://almar-bus.pl/userfiles/file/37471315236.pdf
    • http://kojeneckezbozi.eu/userfiles/file/91084667646.pdf
    • http://www.kmclogistics.com/wp-content/plugins/super-forms/uploads/php/files/d3f4b4e70dcf096ebc71b7bc610c5562/labivaf.pdf
    • http://airholic.com/UpFiles/WebEditorFiles/file/2125245072.pdf
    • https://orkhaconstruction.com/wp-content/plugins/super-forms/uploads/php/files/vkleado9dopi6bpbqd4kim87ud/91743918385.pdf
    • http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/45554672743520e2b7deffcf00c4265d/75206821414.pdf
    • http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/16088adfc1e235---sefanojanofuwoxifoxe.pdf
    • https://sf-tfi-pgu.uz/wp-content/plugins/super-forms/uploads/php/files/a37c845d31c1534974100c2a42e83941/tuvedelutepetof.pdf
    • https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ef7a3055f3---gerotobag.pdf
    • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/16075e18031d11---purogidital.pdf
    • https://cdpu.net/wp-content/plugins/super-forms/uploads/php/files/a61360a7b269f25f14f9b46517f39aaf/30148635649.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=minecraft+forge+1.+13.+2++windows+10
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013057.bin
a7acb4c9b6319f7764d5b0eda5ee1301c98ae6de9327d64f7839576d3502fab2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13057 5776 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.